Kruckenberg's Spindle, a Fusiform Pigmentation of the Cornea

The patient presenting the condition herein described came to the service of Dr. Grout at the Knapp Memorial Eye Hospital for relief of symptoms of migraine. In the course of a routine examination, it was discovered that he had a curious pigmentary deposit on each cornea. By indirect illumination these deposits were seen to be fusiform, apparently lying on or in the posterior corneal strata and inclined slightly, with the upper ends temporally from the midline about 15 degrees. Their length was about two-thirds that of the corneal diameter and the centers about 1.5 mm. below the center of the cornea. Examination with the slit-lamp disclosed the mass of pigment to be a conglomeration of individual dots of chocolate brown pigment, the dots being larger and heavier in the area of the spindle, with finer and less numerous points for about from 1 to 2 mm. around the main